Oil burner



' July 2s, 1925.

1,547,629 C. UEBl-:LMEssER l on. BURNER Filed June 25, 1924 zi-n" 4 Sheets-Sheet 1 n Y Y`- ww yr VMI 312mm:

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' July 28, 1925. 1,547,629

c. UEBELMESSER OIL BURNER Filed June 25. 1924 4 Sheets-Sheet 2 July 28, i925. 1,547,629

C.. UEBELMESSER OIL BURNER Filed June 25.1924 4 Sheets-Sheet 3 Suva/hbo@ ries eene'ser,

j July 2s, 1925. I 1,547,629

C. UEBELMESSER OIL BURNER Filed June 25 i924 4 Sheets-Sheet 4 j@ 16'. 4+-, L L Z 5; Il L #L ij..

x I Il 1/ 37, Z ,2) i@ 3 3c 2X ,r A? J) f A v Y I )L 4 7@ Patented July 28, 1925.

CHARLES UEBELMESSER, 0F NEW YORK, N. Y.

on. BURNER.

Application filed June as, 1924. serial no. 722,220.

versant with the art to which the invention appertains to utilize the same.

My improvements relate to liquid hydrocarbon fuel burners in which vaporization is effected as a preliminary to combustion in amanner well known, in a general way, in

r the art as related to the` heating4 of steam boilers, and for analogous purposes, the objects of my present invention being to attain more perfect combustion and complete utilization of the .calorific value of the hydro-carbon oil used, while at the same time conserving the life and utility of the burner by obviating excessive heating of the parts thereof, all as hereinafter fully set forth,-the invention consisting in the specific construction combination and arrangement of parts and appurtenances described and claimed, whereby these and other advantageous results are attained, and distinctive features being the circulation lof the liquid fuel in such manner that a pre-heating thereof is effected, while, and for the same reason, the parts are simultaneously maintained. at a relatively low temperature, thereby obviating carbonization and, deterioration, etc.

In the accompanying drawings I illustrate a practical embodiment of the essential features of my invention in a mineral oil burner of preferred construction, although I do not limit myself to the identical configuration of parts shown by way of exemplification, since modifications in minor details, and equivalent mechanical expedients, may be resorted to with like results, and without departing from the spirit and intent of my invention in this respect.

With this understanding Fig. 1, is a horizontal or plan View of my im roved voil burner;

ig. 2 is a central vertical sectional elevation thereof, taken upon plane of line 2-2 Fig. 1;

Fig. 8, is an elevation thereof, lookin in the direction of the arrows 3, Figs. 1 an 2;

Fig. 4, is a top View of the torch or pilot member of the device;

Fig. 5, is a side elevation thereof;

Fig. 6, is an elevation of the forward end thereof; 4

Fig. 7, is a longitudinal section thereof, taken upon' plane of line 7-7 Figs. 4 and 6;

Fig'. 8, is an enlarged sectional detail of thc primary or torch (pilot) feed nozzle;

Fig. 9, is a section taken upon plane of line 9-9 Fig. 6;

Fig. 10, is a transverse section taken upon plane of line 10-10 Fig. 7;

Fig. 11, is a transverse section taken upon plane of line 11-11 Fig. 7;

Fig. `12, is a section taken upon plane of une 12-12 Fig. 6;

Fig. 13, is a horizontal section taken upon plane of line 13-13 Fig. 7; Fig. 14, is a `sectional detail, upon a larger scale, of the grate feed;

Fig. 15, is a sectional detail thereof, taken at right angle to Fig. 14;

Fig. 16, is a cross section taken upon Iplane of line 16-16 Fig. 1;

Fig. 17, is a plan of the underside of the burner; broken -away in part, andpartly in section. i

What may be designated for convenience as the grate bars or channels b, b, of the main burner consist of the upper portions of the grooves of the corrugated plate B, :as will be understood more particularly by reference to Figs. 1 and 16, of the drawings, the edges of said grate plate B, being interposed between the concave bottom disc section VB. of the burner, and the annular circumscribing walls B2, thereof, the space B", between said groove plate B, and said bottom plate or section B', constituting the chamber for the supply of hydro-carbon fuel vapor to the perforations in the upper sides of the aforesaid bars or channels, b, b, in the grate plate B,-and both the bottom B', and side walls B2, being provided with external jackets of nonconductive material n,

n, suitablly encased, as shown more particularly in ig. 16, of the drawin The disc shape bottom plate is formed with a gutter or' depression b', extending diagonally thereof, as indicated in Figs. '16 and 17, and in this diagonal depression b', is positioned a diffusing tube b2, into which the super-heated vapor for the perforated grate channels b, b, is injected,the function of said tube b2, being to insure an equitable distribution of fuel gas through the grate chamber Bx, throu h the medium of outlets b", with which sai diffusing tube b2, is formed.

The feed of gaseous fuel to the diffusing tube b2, and chamber B", is eifected by means of an injector I, which derives gas from the vaporizer V, by reason of its connection therewith through the medium of the tube i, said tube i, communicating with the discharge outlet fu, of said vaporizer V, as will be understood by reference more particularly to Figs. 2 and 3 of the drawings.

Interposed between the expansive vaporizing chamber V, and the source of liquid fuel supply fv, is the serpentine coil pipe '02, extending in circular and substantially horizontal alignment above and parallel to 4the grate plate B,-the preliminary vaporization of the liquid hydro-carbon fuel being effected insaid coil faz, and completed in the expansive vaporizing chamber V, preparatory to the introduction of the resultant gas into the grate chamber B", through the medium of the pipe z', and injector I, as hereinbefore stated. cx, is a valve by means of which the supply of liquid hydro-l carbon fuel may be shut of from the vaporizing coil '212, and chamber V, when the use of the grate B,'is not desired.

The injector I, and its appurtenances are of peculiar and novel construction, as shown in Figs. 14 and 15, of the drawings,-that the said injector is fedy through a perforated strainer or shield pipe i", within the horizontal extremity of the feed pipe z', said Y strainer i, eliminating solidified carbon from the feed preparatory to its injection into the diffusing tube b2, and grate chamber Bx, and being susceptible of removal and cleansing when found expedient', as will be understood by reference more particularly to Fig. 14, ,of the drawings, -said horizontal extremity of the feed pipe' i', being fixedly mounted in an air inlet box or casing I provided with lateral openings i, 2, and the inlet is, to the grate chamber Bx, as well as with the door i", (shown open in Fig. 3, and omitted in Fig. 14) formed with a central opening 2'5, for the accommodation of the rear portion of the injector I.

'The inner end of the 'injector tube I, is closed by a cap in which is formed the injector orifice 5, as shown in Fig. 15; and

provision is made for cleansing this orice By this construction and arrangement of` vaporizing feed for the grate B, of the burner, as considered in a unitary sense, I attain 'practically a supply of pure gas and air to the perforations in the grate bars b, Z2 whereby perfect combustion is assured, the serpentine coil e2, acting in combination with the expansive vaporizing chamber V, in such manner that the heat emanating from the grate B, itself is utilized as a means for effecting the complete` vaporization and'superheating of the fluid fuel, and the main or grate supply and service of fuel being thus independent of the continuous pilot torch supply hereinafter set forth. Thus, the main or grate burner B, may be shut down temporarily when necessary or desirable without interference with the continuity'of the pilot torch flame.

The constant primary pilot torch burner C, used in combination with, and as an auX- iliary to the main burner grate B, is positioned in a depression 6*, formed for the purpose in said grate plate B, as shown more particularly in Fig. 2, of the drawings, and consists essentially of a tortuously passaged circulatory shell or `casing C, in which is positioned centrally an aerating tube or chamber A. In other words, the casing C, is partitioned off into a central compartment c, in which` said aeratthe casing by the transverse passage c3 'shown in Figs. 7, 9, 10, 11, 12 and 13, o the drawings. The top wall and end side walls of the central compartment c, are formed with gas jet holes c", for the escape and combustion of the admixture of air and gas derived from' the aerating chamber A, the upper portion of which is formed with openings a, a., communicating with said central compartment c, of the casing C, as shown more particularly in Fig. 7, of the drawings. Hydro-carbon fuel is supplied to the passage c', through the inlet passage c, shown in Figs. 9 and'13, the fluid being derived from the delivery pipe d, connected with a suitable source of supply, said delivery pipe d, communicating with the inlet duct d', in the coupling member D, shown in longitudinal section in Fig; 9, of the drawings. From the inlet passage c, the fuel passes through the side compartment or passage c', to and through the transverse passage c, and to and through the return passage or compartment c2, and

through the outlet passage 022, Fig. 12, to and through the coupling E, to the inverted U-'pipe e, which delivers the fluid fuel to the injector J, by which it is recipitated,

together with the air derived rom the inlet c, directly into the venturi or chaml the vaporizing chamber V, and serpentine coil e2, at a temperature sufliciently high to effect the vaporization of liquid yfuel for the main or grate burner B, when "such independent supply is turned on through the valve o".

The passage of the Huid fuel through said tortuous route of passages in the casing C, and connections, not only effects the gradual vaporization and airification of said fuel, but the circulation maintained also keeps the temperature of the pilot torch burner, as a unit, relatively low and cool, thereby preventing oxidization and clogging of parts and orifices by carbonization. In this respect my auxiliary pilot torch burner C, differs from oil burners of the vaporizingtype in general, in thatthe fuel is circulated through the member from which the fiames issue, thus effecting a distinctive and important improvement in the art. i

The pilottorch injector J, is of special construction in that it not only is provided with a retractible drill needle j', for effecting the cleansing of the discharge orifice j, when desirable, but is also formed with a needle guide and lateral support y'z, behind the nozzle inivliich said discharge orifice is formed. The screw stud j, which constitutes the rigid support for the said drill needle j', is provided with a scaling shoulder jt, which, when the stud j3, is retracted,

55 effects a tight joint with the screw bushing j, in which the said screw stud js, is mounted, thereby obviating the necessity for packing the joint as heretofore rendered necessary owing to the high temperature to which the parts are subjected. This is an important practical advantage in the Way of simplicity, cheapness and efficiency of structure. l

It is to be noted in this connection that the aerating tube or chamber A, is inclined rearward as clearly shown in Fig. 7 of the drawings, so that condensation or wet, un-

evaporized fuel that may accidentally be injected into said chamber A, Will flow back md out of the burner through the air inet c.y

Whereas both the burners herein described are independent in so far as fuel feed and function vis concerned, that are nevertheless'co-related in structure and unitary as means for heating boilers, and for analogous purposes, and ence form legitimate subject matter for combination claims and patent protect-ion.

VVh-at I claim as my invention and desire to secure by Letters Patent, is

1. In `an oil burner of the character designated, the combination with-the main grate and chamber, of an expansive vaporizing chamber and coil positioned above said grate and connected with a hydro-carbon liquid supply pipe, said chamber being extended above the grate, together with a control valve in sa-idy supply pipe, a perforated diffusing tube positioned in said grate chamber and extended diagonally beneath the grate, and an injector therefor interposed in said hydro-carbon liquid supply pipe, substantially in the manner and for the purpose set forth.

2. In an oil burner of the character designated, the combination with the main grate and chamber, of an expansive vaporizing chamber and coil positioned above said grate and connected with a hydro-carbon liquid supply pipe, said chamber being extended above the grate, together with a, control valve in said supply plpe, a perforated diffusmg tube positioned in said grate chamber and extended diagonally beneath the grate, and an injector therefor interposed in said hydro-carbon liquid supply pipe, said injector being provided with a retractable drill needle adapted for use in the cleansing of the injector discharge orifice, substantially in the manner and for the purpose set forth.

. 3. In an oil burner of the character designated, the combination with the main grate andr chamber, of an expansive vaporizing chalnber and coil positioned above said grate and connected with a hydro-carbon liquid supply pipe, with a control valve in said supply pipe, a perforated diffusing tube positioned in said grate chamber and extended diagonally beneath the grate, and an injector therefor interposed in said hydrocarbon liquid supply pipe, said injector being provided with a strainer tube interposed between it and the fuel inlet, substantially in the manner and for the purpose set forth. e

4. In an oil burner of the character designated, the combination with the main grate and chamber, of an expansive vaporizing chamber and coil positioned above said grate and connectedy with a hydro-carbon liquid supply pipe, with a control valve in said supply pipe, a perforated diffusing tube positioned in said grate chamber and extended diagonally beneath the grate, an ejector therefor interposed in said lhydro-carbon liquid supply pipe, said injector being provided with a retractable drill needle adapted for use in the cleansing of the injector discharge orifice, and also being provided with a strainer tube interposed between it and the fuel inlet, substantially in the manner and for the purpose set forth.

5. .In an oil burner of the character designated, the combination ywith the main grate y and chamber, and with the vaporizer and coil thereabovejof a perforated diffusing tube disposed beneath the grate and extended diagonally across the space beneath the same, an auxiliary pilot torch burner positioned under said vaporizing chamber, and comprising a metallic casing formed with a plurality of compartments constituting a tortuous passage for the fluid fuel supply, a compartment in said casing the upper side wall of which is formed with v flame jet apertures, and an injector arranged to .project the vaporized fuel from said tortuous passage into said jet aperture compartment, substantially in the manner and or the purpose set forth. j

6. In an oil burner of the character designated, the combination with the main grate and chamber, and with the vaporizer and coil thereabove, of a perforated diffusing tube disposed beneath the grate and extended 'diagonally across the space beneath the same, an auxiliary pilot torch burner, comprising a metallic casing formed With a plurality of compartments, constituting a tortuous passage for the Huid fuel supply, a central compartment in said casing the upper side wall of which is formed with flamed jet apertures, a perforated aerating tube posit-ioned in said central compartment, and an injector arranged to project vapor-` ized fuel from said tortuous passages into said aerating tube, substantially in the manner and for the purpose set forth.

7 In an oil burner of the character desig! nated, the combination with the main grate and chamber, and with the vaporizer and coil thereabove, of a perforated diffusing tube disposed beneath the grate and .extended diagonally across the space beneath the same, an auxiliary pilot torch burner, comprising a metallic casing formed with a plurality of compartments, constituting a tortuous passage for the Huid fuel supply, a

central compartment in said casing the upper side wall of which -is formed with Luanne flamedjetl apertures, a perforated aerating tube positioned m sald central compartment, and an injector arranged to project vaporized fuel from saidtortuous passages mto` said acl-.ating tube, said injector beino provided with a retractable drill needle adapted I to cleanse the discharge orifice, and a lateral guide and supportfor said drill needle, substantially in the manner and for the purpose set forth.

8. In an-oil burner of the character designated, the combination with the main grate and chamber, and with the vaporizer and coil thereabove, of a perforated diffusing tube disposed beneath the grate and extended diagonally across the space beneath cleanse the discharge orifice, and the stem of said retractable drill needle being formed with a sealing shoulder, substantiall in the manner and for the purpose set fort 9. In an oil burner of the character designated, the combination with the main grate and chamber, and with the vaporizer and coil thereabove, of a perforated ldiffusing tube disposed beneath the grate and extended diagonally across the space beneath the same, an auxiliary pilot torch burner, comprising a metallic casing formed with a plurality of compartments constituting a tortuous passage for the fluid fuel supply, a central compartment in said casing, the upper side wall of which is formed with flame jet apertures, a perforated aerating tube positioned in said central compartment, and an injector arranged to project vaporized fuel from said tortuous passages into said aerating tube, said injector being provided with a retractable drill needle ada-pted to cleanse the discharge orifice, and also with alateral guide support for said drill needle, and the stem of the latter being formed with a sealing shoulder, substantially in the manner and for the purpose seti forth.

CHARLES UEBELMESSER.

Witnesses:

Gno. WM. MIA'rr, MATHILDA STEUERNUGEL. 

